
HALE—AUSTRALIAN CUMACEA 387 
Pedunele of wropod more than half as long again as either exopod or telson, 
with a spine and a seta near distal end of inner margin; endopod curved like a 
bow, a little longer than exoyod and composed of three segments, the second some- 
what longer than first and nearly twice.as lony as third; the suture between second 
and third segments is not very distinet; the joints bear respectively two, three and 
one inner spines, the last subterminal; the terminal ‘‘spines’’ (really composite 
setae) of both exo-and endopod are stout, and are short unless one includes in their 
length the slender setal distal portion whieh emerges from the wide spine-like, 
proximal part (see fig. 20, sp.)- 
Colonr white. Length 4:7 mm, 
Female with developing marsupuim, The carapace is relatively a little longer 
(one-third of total length) than in the ovigerous female and is not widened 
posteriorly, but is suboval in shape and not as wide as deep; the same little 
distal point is present on the pseudorostram. Pediverous somites together are not 
much more than half as lony as the carapace; the third and fourth are not 
ankylosed to the same degree, while the second and third somites are less expanded 
on the sides, so that the third legs are separated from the second by a space little 
greater than that hetween the others; the pedigerous somites ay a whole are, of 
corse, not nearly so broadened as shown im fig. 19. The pleon is as long as the 
cephalothorax ; its fifth somite is only one-fourth as long again as wide, but the 
telson is as in the adult, 
At this stage the appendages differ in no important detail from those of the 
ovigerous female, excepting that the peduncle of the uropod does not reach much 
beyond end of telson, and is barely louger than the rami, while the endopod pf 
this appendage has two, instead of three, inner spines on seeond joint, 
Length 2-9 mm. 
Similar differences oceur belween subadult and ovigerous females of other 
members af the genns and are here siven because some species, owing to lack of 
other material, are described from females not fully mature, 
Loe. New South Wales: 11 miles off Bden, 120 inetres (subadult female, 
K. Sheard, A, Trawl, Jan,, 1943) ; 5 miles off Eden, 60 metres, on mud (iype loc. 
K. Sheard, submarine light, Dec,, 1945) ; 4 miles off Port Hacking, 80 metres, on 
mud (K, Sheard, A. Trawl, May, 1944); Ulladalla, Brnsh Island, 45 fath,, in fine 
silt on flathead “rounds (D. Rochford, Jan., 1945), Type in South Australian 
Museum, Reg. No, C. 2713, 
The male was not taken at any of the above localities. In general the species 
resembles the siialler hari/meyert Zimmer (1914, p, 187, fig. 14) from Western 
Australia but. differs in the armed telson and in the much longer first peraeopod, 
the more prominent and dentate anterolateral angle of carapace, ete, 
GYNCPIASTYLIS AMETGDA Sp. nov. 
Onigerous female, A.—(type). Infewument smooth, thin but ealcified. 
Carapace less than one-third of total length of animal and equal in length 
to pedigerous somites tovether; twice us Jong as deep; seen from above it is 
subtriangular in shape, widest posteriorly, where it is half as broad ayain as 
depth; dorsum with an obscure median ridge on anterior half, not greatly arched 
as seen from the side. Antero-lateral maryin coneave; antero-lateral angle with 
two small teeth, Psendorostral lobes narvow anteriorly and excavate, meeting 
for a distance equal to less thai one-fonrth of length of varapace. Frontal lobe 
well defined; oeular lobe subtriangular, with three faintly delineated lenses. 
Second and fourth pedigerous somites longer dorsally than any of the others; 
pleural parts of second produced forwards. that of third somewhat expanded 
